OCTOBER 10, 2026
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Case File

CVE-2026-93922

HIGH · CVSS 8.8 EPSS 0.82% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-19 · Last synced 2026-10-10

CyberRota Analysis

AI-Generated

The vulnerability affects SiYuan versions up to 3.8.4, where notebook names are rendered as raw HTML in the Daily Note picker dialog, leading to stored cross-site scripting (XSS) in the Electron renderer. This flaw allows attackers to craft notebooks with malicious HTML payloads that execute JavaScript, potentially enabling operating system command execution. Organizations using affected versions of SiYuan should prioritize patching this vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-93922
Severity
HIGH
CVSS
8.8
EPSS
0.82%
Java

Original NVD Description

SiYuan through 3.8.4 renders notebook names as raw HTML in the Daily Note picker dialog without escaping, allowing stored cross-site scripting in the Electron renderer. Attackers can create notebooks with HTML payloads in names that execute JavaScript with Node.js access when the picker opens, enabling operating system command execution.